Suzuki SFV650, Service Manual

Page: 160 / 573

1A-97 Engine General Information and Diagnosis:
DTC “C42” (P1650): IG Switch Circuit Malfunction
B944H11104025
Detected Condition and Possible Cause
Troubleshooting
NOTE
• Refer to “Ignition Switch Inspection in Section 1H (Page 1H-9)” for details.
• After repairing the trouble, clear the DTC using SDS tool. Refer to “Use of SDS Diagnosis Reset
Procedures (Page 1A-15)”.
DTC “C44” (P0130 / P0135): HO2 Sensor (HO2S) Circuit Malfunction
B944H11104026
Detected Condition and Possible Cause
Wiring Diagram
ECM coupler (Harness side)
Detected Condition Possible Cause
Ignition switch signal is not input to the ECM. • Ignition system circuit open or short.
• ECM malfunction.
Detected Condition Possible Cause
C44/P0130
After engine is started few minutes.
(Sensor voltage
≥
2.5 V)
Engine is cold and stopped.
(Sensor output voltage < 0.1 V)
In other than the above value, C44
(P0130) is indicated.
• HO2 sensor circuit open or shorted to ground.
• Fuel system malfunction.
• ECM malfunction.
C44/P0135
The heater can not operate so that heater
operation voltage is not supply to the
oxygen heater circuit. • Battery voltage supply to the HO2 sensor.
ECM
Side-stand
relay
Ignition
switch
Engine stop
switch
O/W
W
Gr
B
W
B/Br
W/G
W/B
HO2 sensor
HO2S
HO2. H
E2
To GP
switch
6
12
17
I944H1110083-01
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
18 18 18 19 20 21 22 23 26 27 24 25 28 29 30 31 32 33 34
35 36 37 38 39 40 41 42 43
44 45 46 47 48 49 50 51 52
I944H1110084-01